P0101 - 004 - Implausible Signal - MIL ON (Mass Air Flow Sensor (G70))

[mmadlang]

Hello,

I'm getting a MAF error, and I already tried cleaning the G70 sensor with no success. I also used VAGCOM, and noticed that the mass airflow is at constant .67g/s regardless if I rev up the engine or not. I even tried driving around, and that number will just never change.

A few weeks ago, I did remove the head cylinder and there for removing the turbo and exhaust manifold.

So my question, is this a bad sensor or it's possible there's a vacuum leak?

I'm getting only two codes...

2 Faults Found:

000257 - Mass Air Flow Sensor (G70) 
               P0101 - 004 - Implausible Signal - MIL ON
             Freeze Frame:
                    Fault Status: 11100100
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 267114 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 1894 /min
                    Load: 57.2 %
                    Speed: 104.0 km/h
                    Temperature: 84.0�C
                    Temperature: 36.0�C
                    Absolute Pres.: 980.0 mbar
                    Voltage: 13.716 V

005634 - Power Supply Terminal 30 
               P1602 - 002 - Voltage too Low - Intermittent
             Freeze Frame:
                    Fault Status: 00100010
                    Fault Priority: 0
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 0 km
                    Time Indication: 0

             Freeze Frame:
                    RPM: 0 /min
                    Load: 0.0 %
                    Speed: 0.0 km/h
                    Temperature: -40.0�C
                    Temperature: -40.0�C
                    Absolute Pres.: 0.0 mbar
                    Voltage: 0.000 V

Readiness: 0000 0000

[Okedokey]

Electrical, remove leads from battery, connect them together for 20 minutes, replace. That will reset the ECU. If that doesn't work check fuses and that you're getting power where needed. Terminal 30 is a positive always on rail, not a particular spot.

[RakkCity]

Electrical, remove leads from battery, connect them together for 20 minutes, replace. That will reset the ECU. If that doesn't work check fuses and that you're getting power where needed. Terminal 30 is a positive always on rail, not a particular spot.

20 mins? I can barely trench them far enough to touch together for 20 seconds without straining too much, shit haha.


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[mmadlang]

So it's not a bad sensor, but just a matter of resetting the ECU? Just curious, what gives it away?